We have purified two isoenzymes of glutathione S-transferase from bovine retina to apparent homogeneity through a combination of gel-filtration chromatography, affinity chromatography and isoelectric focusing. The more anionic (pI = 6.34) and less anionic (pI = 6.87) isoenzymes were comparable with respect to kinetic and structural parameters. The Km for both substrates, reduced glutathione and...

fascioliasis is a worldwide parasitic disease in human and domestic animals. the causative agents of fascioliasis are fasciola hepatica and fasciola gigantica. in the recent years, fasciola resistance to drugs has been reported in the many of publications. fasciola spp has detoxification system including gst enzyme which may be responsible for its resistance. therefore , the aim of the study wa...

background: the glutathione s-transferase (gst) family of metabolising enzymes plays an important role in the detoxification of mutagens and carcinogens. the expression of many of these cancer susceptibility enzymes is genetically polymorphic. an increased frequency of gst-null genotypes has been associated with several malignancies. objective: to investigate the rate of gstt1 and gstm1 null ge...

background: endometriosis is one of the most common gynecologic disorders. it is a complex trait and both genetic and environmental factors have been implicated in its pathogenesis. there is growing evidence indicating that exposure to environmental contaminants is a risk factor for endometriosis. glutathione-s-transferase m1 (gstm1) is one of the genes involved in detoxification of endogenous ...